Roar from front Left in 4X4, locking hub issue?

[chrispaine]

Originally Posted by captivahach

Its only in 4wd doesn't do it in 2wd with hubs locked in. Does it some on accleration but really bad on decel. Its a really loud roar and can feel it some in the floor board. mostly from the diff side.

I borrowed that from capitvhach (hope you don't mind!) because it is exactly what mine is doing. It won't do it in 2wd with hubs locked or unlocked, it only makes the should when using 4wd. I need a new exhaust, I removed my stacks and the 90* up to the bed behind the cab is now turned out in front of the wheel. I can't hear much ha. But I can hear this!

What should I look into? thanks!

[Jleof250]

[chrispaine]

Really, no one? You guys are normally faster then this! Someone has to have an idea of whats wrong..

[Jleof250]

I had similar question several weeks ago and steel no answer. Im trying to replace my u joints some time when weather gets warmer I let you know if any success.

[captivahach]

Originally Posted by chrispaine

I borrowed that from capitvhach (hope you don't mind!) because it is exactly what mine is doing. It won't do it in 2wd with hubs locked or unlocked, it only makes the should when using 4wd. I need a new exhaust, I removed my stacks and the 90* up to the bed behind the cab is now turned out in front of the wheel. I can't hear much ha. But I can hear this!

What should I look into? thanks!

Na man i dont mind still looking here myself. I pulled the wheel bearing and greased it. Not it I pulled front driveshaft and my pinion is tight. Front cover was off all gears and pinion looked good. Kinda sounds like a dry bearing roar. Hopefully gonna go to the rack mon/tues to try to listen. My creeper got shacky at 12mph trying to ride under the truck and listen (jk)

[Dixienormous]

i have the same roar like a bad hub so i looked under there and checked everything. my locking hub needs to be serviced its sticking and causing the one side to spin, making that roaring sound.hope this helps

[Jleof250]

Originally Posted by Dixienormous

i have the same roar like a bad hub so i looked under there and checked everything. my locking hub needs to be serviced its sticking and causing the one side to spin, making that roaring sound.hope this helps

I replace my with warn and no change.

[Jleof250]

Originally Posted by captivahach

Na man i dont mind still looking here myself. I pulled the wheel bearing and greased it. Not it I pulled front driveshaft and my pinion is tight. Front cover was off all gears and pinion looked good. Kinda sounds like a dry bearing roar. Hopefully gonna go to the rack mon/tues to try to listen. My creeper got shacky at 12mph trying to ride under the truck and listen (jk)

Did you replace the u joints?

[03_Turbo7.3]

Idunno if this will ever go away, it could be just the backlash your hearing in the diff, mine does this too and i completely rebuilt the front end, minus the diff, and the noise is still there..it hasnt hurt anything yet and until it does i just ignore it..

[chrispaine]

Originally Posted by Jleof250

I replace my with warn and no change.

man, that's not good to hear. I was going to try new hubs, it seems like that would be it!
My truck just started to do it, unless I just didn't hear it in the past.